*{
    margin: 0;
    padding: 0;
}

body {
    background-color: #F3F3F3;
}

h2 {
    text-align: center;
    color: sandybrown;
    margin: 30px auto;
    font-size: 30px;
}
#container {
    width: 450px;
    height: 300px; 
    margin: 0 auto; 
    /* padding:20px 0 ; */
    background-color:#fff;
    border-radius: 10px; 
    text-align: center; 
    line-height: 30px;
}

#top {
    width: 180px;
}
#top input {
    width: 180px;
    height: 30px;
    margin-left: 15px;
    padding: 5px 0 ;
    margin: 5px 0;
}

span {
    margin-left: 20px;
}

label {
    width: 80px;
    text-align: right;
    display: inline-block;
    font-size: 15px;
    font-family: arial;
    color: #666;
    /* padding:5px; */
}

#bottom label{
    width: 40px;
}


button {
    width: 60px;
    height: 30px;
    /* display: block;
    margin: 0 auto; */
}